import axios from "axios"
import storage from "store"
import { ACCESS_TOKEN } from "@/store/mutation-types"

const mimeMap = {
  xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
  zip: "application/zip"
}

const baseUrl = process.env.VUE_APP_BASE_API
export function downLoadZip(str, filename) {
  var url = baseUrl + str
  axios({
    method: "get",
    url: url,
    responseType: "blob",
    headers: { "Authorization": "Bearer " + storage.get(ACCESS_TOKEN) }
  }).then(res => {
    resolveBlob(res, mimeMap.zip)
  })
}
/**
 * 解析blob响应内容并下载
 * @param {*} res blob响应内容
 * @param {String} mimeType MIME类型
 */
export function resolveBlob(res, mimeType) {
  const aLink = document.createElement("a")
  var blob = new Blob([res.data], { type: mimeType })
  // //从response的headers中获取filename, 后端response.setHeader("Content-disposition", "attachment; filename=xxxx.docx") 设置的文件名;
  var patt = new RegExp("filename=([^;]+\\.[^\\.;]+);*")
  var contentDisposition = decodeURI(res.headers["content-disposition"])
  var result = patt.exec(contentDisposition)
  console.log(result)
  var fileName = result[1]
  fileName = fileName.replace(/"/g, "")
  aLink.href = URL.createObjectURL(blob)
  aLink.setAttribute("download", fileName) // 设置下载文件名称
  document.body.appendChild(aLink)
  aLink.click()
  document.body.removeChild(aLink)
}
